Heat exchanger element

Details Heat exchanger element Heat exchanger element

1992-12-16

1994-02-15

Rivell, John

Heat exchange

Conduit within, or conforming to, panel or wall structure

165164, F28D 700

Patent

active

052858456

ABSTRACT:
A heat element comprises three parallel tubes (11), which to a considerable part of their lengths are cast into a body (12) of a metal having good heat transferring properties and having a rectangular cross section. Within the portion of the tubes (11) enclosed by the body, the tubes are externally provided with helical rills (15), running in opposite directions, and are interconnected by tack welding outside the expected body, before the casting operation. The side faces of the body (12) are subdivided by means of transverse and longitudinal grooves (18, 19a, 19b), so heat transferring enlarging members (17) as truncated pyramids are formed. Members in adjacent rows are displaced sidewardly, so a zig zag pattern is formed, which causes turbulence in the second heat transporting medium flowing along the body.

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patent: 3249666 (1966-05-01), French
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patent: 3861462 (1975-01-01), McLain
patent: 4583583 (1986-04-01), Wittel
patent: 4705711 (1987-11-01), Perna
patent: 4782892 (1988-11-01), Ostbo
patent: 4928755 (1990-05-01), Doty et al.
patent: 5063018 (1991-11-01), Fontirroche et al.
patent: 5070937 (1991-12-01), Mougin et al.

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